Here is icon file. copy it both DVD folders. you can edit autorun.inf files in DVD1 and DVD2 like below.
-------------DVD1------------
[autorun]
open=Autorun.exe
icon=Conquest.ico
Name=The Lord of the Rings - Conquest
[Special]
Disk=1
ProductGuiID={628C3D50-F524-4C49-A958-672CE7953756}
-------------DVD2------------
[autorun]
open=0
icon=Conquest.ico
Conquest.rar